[dpdk-dev] [PATCH branch-16.11] net/i40e: return errno when interrupt setup fails

[Aaron Conole <aconole@redhat.com>]

From: Michał Mirosław <michal.miroslaw@atendesoftware.pl>

Signed-off-by: Michał Mirosław <michal.miroslaw@atendesoftware.pl>
Reviewed-by: Jingjing Wu <jingjing.wu@intel.com>
---
This is cherry picked from commit d75547718c87 ("net/i40e: return errno
when interrupt setup fails") and applies cleanly.  This is just a
backport request.

 drivers/net/i40e/i40e_ethdev.c               | 5 +++--
 lib/librte_eal/linuxapp/eal/eal_interrupts.c | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 65e10f3..191e858 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -1704,8 +1704,9 @@ i40e_dev_start(struct rte_eth_dev *dev)
 	     !RTE_ETH_DEV_SRIOV(dev).active) &&
 	    dev->data->dev_conf.intr_conf.rxq != 0) {
 		intr_vector = dev->data->nb_rx_queues;
-		if (rte_intr_efd_enable(intr_handle, intr_vector))
-			return -1;
+		ret = rte_intr_efd_enable(intr_handle, intr_vector);
+		if (ret)
+			return ret;
 	}
 
 	if (rte_intr_dp_is_en(intr_handle) && !intr_handle->intr_vec) {
diff --git a/lib/librte_eal/linuxapp/eal/eal_interrupts.c b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
index 368863f..25797e4 100644
--- a/lib/librte_eal/linuxapp/eal/eal_interrupts.c
+++ b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
@@ -1157,7 +1157,7 @@ rte_intr_efd_enable(struct rte_intr_handle *intr_handle, uint32_t nb_efd)
 				RTE_LOG(ERR, EAL,
 					"can't setup eventfd, error %i (%s)\n",
 					errno, strerror(errno));
-				return -1;
+				return -errno;
 			}
 			intr_handle->efds[i] = fd;
 		}
-- 
2.9.5